Tummy Pain in baby is usually pretty obvious. The arching back, the tooting, the excessive burping/spitting up and the high pitched scream are all good indications that something is amiss. Breastfeeding moms have the daunting task of wondering about too little milk, too much let-down and that extra cup of coffee. In most cases, gas is the culprit but before you put down that broccoli, consider all of the possibilities.